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Schlumberger Private

International Workshop on Power Generation with Carbon Capture & Storage in India New Delhi, 22 nd -23 rd January 2008. Schlumberger Private. Oilfield Services. OFS Segments Drilling & Measurements Testing Services Wireline Artificial Lift Schlumberger Completions Well Services

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Schlumberger Private

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  1. International Workshop on Power Generation with Carbon Capture & Storage in IndiaNew Delhi, 22nd-23rd January 2008 Schlumberger Private

  2. Oilfield Services OFS Segments Drilling & Measurements Testing Services Wireline Artificial Lift Schlumberger Completions Well Services Data & Consulting Services Integrated Project Management Schlumberger Information Solutions 76 000 people, 140 nationalities Present in more than 100 countries WesternGeco – Seismic Businesses: Water Services Carbon Services

  3. Seismic IPM Logging & Testing Data Management Well positionning Production Cementation, Stimulation Reservoir interpretation Wells Perforation & Completion Oilfield Services

  4. Schlumberger involved CO2 Storage Projects Sleipner Weyburn II Ketzin Karniow MGSC IdF MRSCP PCOR COACH Mountaineer MOVECBM InSalah Hassi Touareg Frio CCP2 PETRONAS Gorgon Callide Otway CO2CRC

  5. Site Selection Field Design Site Characterization (SCP) Pre-Operation Phase Permitting ~ 1-2 year Site Preparation Injection Site Construction Monitoring (M&V) Operation Phase • Operation Performance & Risk Management System (PRSM) Communication and Public Acceptance ~ 10-50 years • Verification Post-Injection Phase Site Retirement Programme (SRP) • Environmental Transfer of Liabilities ~ 100+ years CO2 Storage Workflow

  6. Overall approach to Risk management in CCS Performance & Risk Management Performance & Risk Assessment Risk Treatment • Cost • Environment • Health & Security • Image • Capacity • Injectivity • Containment Functions / Stakes Actions Monitoring Modeling Characterization Well construction & Interventions Tools & Technologies Injection equipment & process

  7. Monitoring Modeling Characterization Materials & Interventions Tools & Technologies Example: P&R for Well Integrity Performance & Risk Management Performance & Risk Assessment Risk Treatment • Cost • Environment • Heath & Security • Image Actions Well repair, plug, Abandon • Capacity • Injectivity • Containment Functions / Stakes • Corrosion rate • Cement de-bonding and attack • CO2 presence & fluxes • Alarms • Well location, status & Completion diagrams • Completion integrity assessment • Cement degradation • Casing corrosion • CO2 migration • CO2-resistant completions • Remedial interventions • Well Plugging

  8. Identification and quantification of failure mechanisms Risk Ranking & Performance Evaluation Construction of Leakage Scenarii Functional Analysis (from Damen et al, 2003) (from US Geological Survey) Knowledge Data & Models Uncertainties Exhaustive inventory of features and potential hazards Example: Well integrity risk assessment

  9. Initial design Example: Well integrity risk managementA Guide to Decision Solution 3: Change plug position Improve cement Surface monitoring Cost : 300 Solution 1: Monitoring Cost : 200 Solution 2: Thicken plug Squeeze Cost : 600 B = 10 B = 50 B = 30 C/B = 20 C/B = 12 C/B = 10

  10. Measuring for Characterization • Geophysics / Geology • Seismic, VSP’s • Imagers • Petrophysics / Mineralogy • Density, Porosity, Resistivity • Element concentration • Natural T, K, U emissions Measurements for Characterization Measurement Rate Site Characterization • Geomechanics • Sonic, Density • Pressure measurement & test • Well Integrity • EM, Ultrasonic, Sonic 1 10 100 Pre-Operation Phase Operation Phase Duration of a Storage Project (*) From Chalaturnyk et al.

  11. Surface imaging Mapping EM survey interpretation Log interpretation Well correlation Surface identification Surface/subsurface interaction Data input Information management GIS database Data analysis Facies modelling Fault modelling Fracture modelling Hydrodynamic test analysis Calibration History match Post processing Presentation Eclipse 3D flow simulation Geochemistry Geomechanics 3D Geological model 3D Property model of the Reservoir and the Overburden Uncertainty analysis Upscaling processes Reservoir and Aquifer property population CO2 Storage Site Modelling Workflow Petrel/Ocean

  12. Performance Control • Injectivity • CO2 in place • Risks Evaluation and Control • Loss of containment • Contamination (aquifers, surface…) • Leaks on surface – Accumulation (Damen et al, 2003) • Model calibration for a long-term prediction of the fate of the CO2 injected • Displacement • Trapping Mechanisms (dissolution, mineralization …) Monitoring - Objectives

  13. Verification Monitoring • CO2 location and tracking • Cap rock integrity • Well Integrity • Operational Monitoring • CO2 injection control • Cap rock integrity • Environment Monitoring • Aquifers • Surface • Atmosphere Environmental Monitoring Operational Monitoring Verification Monitoring. Measuring for Monitoring Measurements for Characterization Measurement Rate Site Characterization 1 10 100 1000 Equilibration Operation Phase Long-Term Performance Pre-Operation Phase Duration of a Storage Project (*) From Chalaturnyk et al.

  14. Monitoring - Technologies • Geophysical Techniques • Seismic • Electromagnetic • Gravimetry • Microseismicity • Well Logging Techniques • Well Logging – CO2 Saturation • Sampling • Well Logging – Wellbore Integrity • Permanent sensors • Environment Monitoring • Gas Concentration & Flux • pH in aquifers • Fluid composition

  15. Containment Risk Management Methodology Reservoir geomechanics (faults, caprock) Modeling Monitoring Well integrity completion degradation characterization Integrity monitoring Materials Remediation techniques) CO2 Transport and Fate Reactive transport modeling Fluid flow Geochemistry Geomechanics Thermal Monitoring measurements Sensor development Interpretation and integration Model calibration Schlumberger Carbon Services R&D Activities • Injectivity • Injectivity control – near wellbore effects • Injection operation monitoring • Advanced hydro-fracturing techniques • Injection optimization (well design, well patterns)

  16. Potential Joint Project Participation • Phases • Site Selection • Site Characterization • Site Construction • Injection/Monitoring Phase • Site Closure • Technologies • Modeling (Petrel, Eclipse, Geomechanics) • Characterization Measurement (Seismic, Logging (WL/LWD)) • Well/Reservoir integrity (Drilling services, completions, well integrity, cementing technology, geomechanics, geochemistry, logging) • M+V measurements (logging, 4D seismic, micro seismic, EM, DTS (P+T), shallow aquifer surveys)

  17. CO2 Storage: Risk and Performance Management through Characterization and Monitoring Carbon Capture & Storage is the world’s best chance to have a major and immediate impact on CO2 emissions reduction. • We should start now… • …We will learn by doing.

  18. “All I’m saying is now is the time to develop the technology to deflect an asteroid.”

  19. Thank you !

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